Mine-timbering machine.



J. 0. PARDUE. MINE TIMBERING MACHINE.

APPLIOATIoN FILED 00T. 14, 1909.

Patented Oct. 4, 1910.

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V .J. C. IPARDUB.

MINE TIMBERING MACHINE.

APPLICATION FILED 00T.14 1909.

Patented 0013.4, 1910.

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APPLICATION FILED 0032.14, 1909.

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JOSEPH C. PARDUE, OF WILLOWTON, WEST VIRGINIA.

MINE-TIMBERING MACHINE.

ermee.

Speccation of Letters Patent.

Patented @en t, i910.

Application filed October 14, 1909. iSerial No. 522,608.

exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same. s

This invention relates to mine timbering and its objectis to provide anovel form of machine which is preferably termed a mine timberingmachine.

One object of the invention is the provi-L sion or' a telescopic hoistespecially arranged to vplace the head timbers across the passages of amine and holchthem in position during the placing of the struts.

Another object of the invention is to provide a mechanism of this classso arranged that it will occupy but little vertical space when collapsedand when extended will be adapted to retain the extended position.

With the above and other objects in view the invention consists ingeneral of a device arranged for support upon a mine car and embodying aspecies of telescopic hoist or jack.

The invention further consists in certain novel details of constructionand combinations o parts hereinafter fully described, illustrated in theaccompanying drawings, and specifically set forth inthe claims.

In the accompanyingdrawings, like characters of reference indicate likeparts in the several views, andzwlligure 1 is side elevation of a minecar equipped with-thislinvention, the invention being shown in thecollapsed position. Fig. 2 is a view of the invention in extendedposition, only the floor of the car being shown. Fig. 3 is a section onthe line 3 3 of Fig. 1. Fig. l is anend elevation of the device, certainpartsbeing broken away the better to show the operation. Fig. 5 is asection on the line 5-5 of Fig. 1. Fig. 6 is a section on the line 6 6 4of Fig. 5.

The numeral 10 indicates the licor of the mine car and this floor issupportedpn the usual frame 11 which is in turn supported on wheels 12.

Secured centrally of the mine car is a base i3 from which extend upwardcertain guides,

made of angle iron.

1a. These 'guides are in the form of L- shaped members and may, ifdesired, be Furthermore, the guides are very firmly fixed to tlie baseand are connected at their upper ends by means of brace members 15. Heldwithin the guides 14- and slidable vertically with reference thereto isa frame 16 which in turn acts as a guide for a centrally disposed post17 having a series of ratchet teeth 18 formed on one face. Upon theupper end of the frame 1G is carried a head 19 and upon the upper end ofthe post 17 is carried a pair ot' bearings 20 through which passes asha-ft 2l having winding drums 22 securely keyed thereto between thebearings and being provided at one end with an angled portion 23 adaptedto receive the socketed end of a y crank 24.

Luge 25 project outwardly through the guides from the post 17 and theselugs are perforated to receive pivot bolts 26. At 27 are shown certainstruts which have bolt receiving openings at their lower ends and thebolts 2G pass through these openings and serve to secure the lower endsof these struts to the lugs The head 19 is provided at each end withcertain bolt holes 28 adapted `to receive bolts29, and links B0 havetheir upper ends attached to the head 19 by means of these bolts whiletheir lower ends are pivotally connected to the struts 27 by bolts 31.

lWhen the device is collapsed as in Fig. 1 the links and struts whichare connected lie at angles to each other as can be clearly seen byreference to that figure while when the' device is in elevatedpositionthe links and. struts are substantially. in alinement as, can clearly beseen by reference to Fig. 2 and the length of the struts lis such thatthey bear against the under side of the head and form. very obtuseangles therewith so that they act to frictionally engage with the underside of said head and prevent the accidental dropping of the same. l Y

For the purpose of bringing the struts and links into alinement each ofthe struts has connected thereto a block 32 and tofthe post adjacent itsupper end are connected other blocks 33. @ver these blocks passes aflexible cable 34 and the ends of these cables are wound upon therespective drums 22 in such manner that the rotation of the, shaft 1none directionor thelother will ope-rate either to simultaneously windthe cables on the drums Athe ratchet when desired. 'A handle 41 isdetachably attached to the lever 36, being provided with a reduced endarranged to fity within the socket 37 for the purpose of connecting thehandle and lever. At 42 is a locking pawl which normally engages theratchet teeth 18 and serves to hol the post 17 in raised position duringthe time of the upward movement of the handle 41.

'Pivotally mounted on thehead 19 is a bolster 43 adapted to receiveamine timber on its upper surface, the bolster being pivoted as noted,in order that this timber may be swung to any position desired withrelation to the center line of the car.

In the operation of this device the car is loaded with the timbersdesired to be used and run into the place where the timber operationsare to begin. One of the timbers is then placed upon the bolster 43 andthe crank 24 turned until the struts 27 are brought into alinement withthe links 30 and the upper ends of these struts jammed firmly beneaththe head 19. This, of course,

will raise the head and frame 16 vertically.

The timber may then be swung around to desired position and the crank 24removed. The handle 4l is then moved up and down after the manner of apump handle and this causes the post 17 to rise and the rising of vthispost carries with it the head 18; struts 27 and all the other parts thathave previously been in operation. When the timber has been forcedsolidly against the roof the sill may be laid, if one is used, and theside timbers of the frame placed in position The post 17 may then belowered by again operating the handle 4l, the pawls 38 and 42 beingalternately manually disengaged from the ratchet teeth 18. Vhen thedownward movement .is finished the crank 24 may be applied to thesquared end 23 and the struts 27 moved outward until the frictionagainst the under side of the head 19 is overcome when the handle may beallowed to rotate backward and permit the parts to lassume the positionshown in Fig. 1.

It will be seen that by means of this device the operation of raisingmine timbers to There has thus been provided a simple and etiicientdevice of the kind described and for the purpose specilied.

It is obvious that minor changes may be made in the form andconstruction of this invention without departing fromthe materiallprinciples thereof. It is not therefore desired to conline theinvention to the exact form herein shown and described, lbut it iswished to include allsuchas roperly come within the'scope of the ap ened claims.

Having thus described t e invention, what is claimed as new, is

1. In a device of the class ldescribed, a base, guides extendingvertically from said base, a frame held to slide in said guides, a

ost sliding in .said frame, a head onsaid rame, links pivoted to saidhead, struts pivoted to the links and the lower partof they-post, saidstruts and links forming toggles, means to straighten said toggles and'raise the frame in the guides, and other means to raise the tirety.

2. In a device of the class described, a base, guides extendingvertically therefrom, a frame held to slide in said guides, a lpostsliding in said frame, a head on said frame, links pivotedV to saidhead, struts pivoted intermediate 'their ends to the links and at theirlower ends to the lower part of the post and frame as an enpost, saidstruts and links forming `to gles,l

and the struts when in alinement -wit 1 the links frictionally engagingthe under side of the head, means to straighten said toggles and raisethe frame in the guides, and other means to raise the ost.

3. In a vdevice o the class described, a base, guides extendingvertically therefrom, a frame held to slide in said guides, a postsliding in said frame, a head on said frame, links pivotedto said head,struts pivoted intermediate their ends to the links and at their lowerendsto the lower part of the post, said struts and links formingtoggles, and the struts when in alinement with the links frictionallyengaging the under sidepf thehead, and a bolster pivotally mounted onsaid head, means to straighten said toggles and raise the frame in theguides, and other means to raise the post.

4. In a device of the class described, a base, guidesextending-vertically from said base, a frame held to slide in saidguides, a

post sliding in said frame, a head on said frame, links pivoted to saidhead, struts pivoted to the links `and the lower part of the'post, saidstruts and links forming toggies, winding drums at the upper end of Isaid post, blocks connected to the upper end of said post, other blocksconnected -to said struts, cables extending over said blocks and having'their free ends wound on the drums, a' crank to rotate said drums, andmeans to raise the post and frame as an entirety.

5. In a device of the class described, a

base, guides extending vertically therefroim.

a frame held to slide in said guides, a post links pivoted to said head,struts pivoted intermediate their ends to the links and at.

6. In a device of the class described, a-

base, guides extending vertically therefrom, a frame held to slide insaid guides, a post sliding in said frame, a head on said frame, linkspivoted to said head, struts pivoted v .intermediate their ends to thelinks and at their lower ends'to the lower part of the post, said strutsand links forming toggles, and the struts when in alinement with thelinks rictionally engaging the under side of the head, and a bolsterpivotally mounted on said head, Winding drums wound at the 'upper end ofsaid post, blocks connected to the upper end of said post, other blocksconnected to said struts, cables extending over said, blocks and havingtheir free ends .wound on the drums, a crank to rotate -said drums, andmeans to raise the post and frame as an entirety.

7. In a ,device of the class described, a base, guides extendingvertically from said base, a frame held to slide in said guides, a

post sliding in said frame, a head on said frame, links pivoted to saidhead, struts pivoted to the links and the lower part of the' post,`saidstruts and links forming toggles, means to straighten saidy toggles andraise. the frame iny the guides, and. other means to raise the post andframe as an entirety, said other means ,comprising ratchet teeth formedon said post, a lever' pivoted tosaid guides, a pawl connected to theinner end of said lever and normally enn gaging said ratchet teeth, anda stop pawl pivoted to said guides andnormally enga-ging said ratchetteeth.`

8. In a device of the class described, a base, guides extendingvertically therefrom, a frame held to slide in said guides, a postsliding in said frame, a head on said frame, links pivoted to said head,struts pivoted intermediate their ends to the links and at their lowerends to the lower part of the post, said struts and links formingtoggles, and the struts when in alinement with the links frictionallyengaging the under side of the head, means to straighten said togglesand raise the frame in the guides, and other means to raise the post,said other means comprising ratchet teeth formed on said post, a leverpivoted to said guides, a pawl conneeted to the inner end oi said leverand normally engaging said ratchet teeth, and a.

stop pawl pivoted to said guides and normally engaging said ratchetteeth.

In testimony whereof, I aiiix my signa R. B. MILLER, CHAs. MCCAULEY.

